Heat and Severe Thunderstorms in the Eastern U.S.

A widespread heat wave will peak over the South and East today, with several dozen temperature records expected along the East Coast. Heat should begin to ease this weekend in the Northeast, while hazardous heat continues over the South. Severe thunderstorms capable of damaging winds are possible across parts of the Appalachians, Mid Atlantic, and Northeast this afternoon and evening. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Light Rain

80°F

27°C

Humidity	90%
Wind Speed	SE 5 mph
Barometer	30.01 in (1015.4 mb)
Dewpoint	77°F (25°C)
Visibility	10.00 mi
Heat Index	86°F (30°C)
Last update	12 Jun 10:56 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Lockhart TX

Today
High: 92 °F
Chance
Showers
Tonight
Low: 74 °F
Partly Cloudy
Saturday
High: 92 °F
Slight Chance
Showers then
Chance
T-storms
Saturday Night
Low: 77 °F
Partly Cloudy
Sunday
High: 92 °F
Partly Sunny
then Chance
T-storms
Sunday Night
Low: 75 °F
Chance
T-storms then
Showers
Likely
Monday
High: 87 °F
Showers
Likely then
T-storms
Monday Night
Low: 73 °F
Showers
Likely
Tuesday
High: 87 °F
Showers
Likely

Detailed Forecast

Today

A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 92. Heat index values as high as 103. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.

Tonight

Partly cloudy, with a low around 74. Southeast wind 5 to 10 mph.

Saturday

A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 92. South southeast wind 5 to 10 mph. Chance of precipitation is 30%.

Saturday Night

Partly cloudy, with a low around 77. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

Sunday

A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 92. Southeast wind 5 to 10 mph.

Sunday Night

A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 75. Southeast wind 5 to 10 mph becoming light in the evening. Chance of precipitation is 60%.

Monday

Showers and possibly a thunderstorm. High near 87. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 90%.

Monday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 73. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%.

Tuesday

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 87. Northeast wind around 5 mph. Chance of precipitation is 70%.

Tuesday Night

A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Chance of precipitation is 20%.

Wednesday

Mostly sunny, with a high near 92.

Wednesday Night

Partly cloudy, with a low around 77.

Thursday

Mostly sunny, with a high near 96.